Sponsored by: The Český ráj House of Nature, Forests of the Czech Republic, The Nature Conservation Agency of the Czech Republic, PLA Administration Český ráj and Museum and Gallery in Česká Lípa
Medieval castle Drábské světničky, fortified settlement Hrada and Klamorna.
Guided tour of the important archaeological area in the Bohemian Paradise UNESCO Global Geopark.
Free entry.